Microfacies and depositional environment of theAsmari Formation of the Bandar-pol anticline, Zagros Basin, South of Iran

Volume 16 , Issue 2 , April 2014 , Pages 1-15

Authors

¹ Department of Geology, Faculty of Science, Hormozgan University,

The Asmari Formation (Oligocene-Miocene), a thick carbonate succession of shallow-

water carbonates of the intrashelf basin deposits of Zagros Mountains, has been studied to

determine its microfacies and paleoenvironments. In the study area (Bandar-pol anticline), the

Asmari Formation is subdivided into nine microfacies that are distinguished by petrographic

analysis on the basis of their depositional textures and fauna. Consequently, five major

depositional environments were identified in the formation. Based on the paleoecology and

lithology, five distinct depositional settings can be recognized: tidal flat (MF1), lagoon (MF2-3-

4), shoal (MF5), restricted (MF6) and open marine (MF7-8-9). Based on the environmental

interpretations, a ramp consisting of inner and middle parts prevails.

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